阅读说明：本技术 透明油漆组合物 (Clear paint composition ) 是由 郑多恩 朴锺允 金志承 马忠植 李重昊 郑填勳 李禹卓 李桢仁 于 2018-12-17 设计创作，主要内容包括：本发明涉及单组分透明油漆组合物,其包括：一种或多种类型的丙烯酸多元醇树脂；通过缩水甘油酯与含有羧基和羟基的丙烯酸树脂的反应产生的改性丙烯酸多元醇树脂；以及硬化剂。(The present invention relates to a one-component clear paint composition comprising: one or more types of acrylic polyol resins; a modified acrylic polyol resin produced by the reaction of a glycidyl ester with an acrylic resin containing carboxyl groups and hydroxyl groups; and a hardening agent.)

1. A one-component clear paint composition comprising:

one or more acrylic polyol resins;

a modified acrylic polyol resin produced by the reaction of an acrylic resin containing carboxyl groups and hydroxyl groups with a glycidyl ester; and

a hardening agent which is a mixture of a hardening agent,

wherein the modified acrylic polyol resin is included in an amount of 10 wt% to 25 wt% with respect to the total weight of the clear paint composition, and has a viscosity of 70cP to 110cP at 25 ℃.

2. The one-component clear paint composition according to claim 1, wherein the glycidyl ester has a chemical structure represented by the following chemical formula 1.

[ chemical formula 1]

(Here, R is a C1 to C30 alkyl group.)

3. The one-component clear paint composition according to claim 1, wherein the modified acrylic polyol resin has a glass transition temperature (T) of 0 ℃ or less_g) A hydroxyl value of from 100 to 150mgKOH/g, and an acid value of from 10 to 15 mgKOH/g.

4. The one-component clear paint composition according to claim 1, wherein the one or more acrylic polyol resins are included in an amount of 30 to 70 wt% with respect to the total weight of the clear paint composition, and the hardener is included in an amount of 20 to 50 wt% with respect to the total weight of the clear paint composition.

5. The one-component clear paint composition according to claim 1, wherein the one or more acrylic polyol resins have a glass transition temperature of 10 ℃ to 50 ℃.

6. The one-part clear paint composition of claim 1, wherein the one or more acrylic polyol resins comprise a first acrylic polyol resin and a second acrylic polyol resin.

7. The one-component clear paint composition according to claim 6, wherein the first acrylic polyol resin is included in an amount of 20 to 69.9 wt% with respect to the total weight of the clear paint composition, and the second acrylic polyol resin is included in an amount of 0.1 to 30 wt% with respect to the total weight of the clear paint composition.

8. The one-part clear paint composition according to claim 6, wherein the first acrylic polyol resin has a resin solids content of 55 to 70 wt%, a viscosity of 950 to 2,400cP at 25 ℃, an acid value of 5 to 15mgKOH/g, a hydroxyl value of 120 to 170mgKOH/g, a glass transition temperature of 10 to 20 ℃, and a weight average molecular weight of 10,000 to 30,000 g/mol.

9. The one-part clear paint composition of claim 6, wherein the second acrylic polyol resin has a resin solids content of 40 to 60 wt%, a viscosity of 20 to 55cP at 25 ℃, a glass transition temperature of 10 to 50 ℃, and a weight average molecular weight of 3,000 to 15,000 g/mol.